To reduce or avoid it, researchers have examined the effect of smoking,diet, brain-challenging games, exercise and other strategies.

VOA: standard.2010.06.17

How many people know that three times a week physical exercise,30 minutes each time has the same effect ? as our most powerful psychiatric drugs?

多少人知道，每周三次,体育锻炼，每次三十分钟，与最强劲的精神药物,有同样的效果？

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